Impatiens noli-tangere (Touch-me-not Balsam; Latin impatiēns "impatient" or "not allowing", and nōlī tangere "do not touch": literally "be unwilling to touch") is an annual

Annual plant

An annual plant is a plant that usually germinates, flowers, and dies in a year or season. True annuals will only live longer than a year if they are prevented from setting seed...

 herbaceous

Herbaceous

A herbaceous plant is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground...

 plant in the family Balsaminaceae

Balsaminaceae

Balsaminaceae are a family of dicotyledonous plants, comprising two genera and 850+ species, all but one of which belong to the genus Impatiens...

 found in damp places in Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

, Asia

Asia

Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

 and North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

. The yellow flowers are followed by pods which forcefully explode when ripe, ejecting the seeds for some distance.
Also called Touch-me-not, Yellow Balsam, Jewelweed or Wild Balsam.

External links

• Jepson Manual Treatment
• USDA Plants Profile